diff --git a/apps/web/tsconfig.app.json b/apps/web/tsconfig.app.json
index 381e35c..a514d29 100644
--- a/apps/web/tsconfig.app.json
+++ b/apps/web/tsconfig.app.json
@@ -24,7 +24,6 @@
     "noFallthroughCasesInSwitch": true,
     "noUncheckedSideEffectImports": true,
 
-    "baseUrl": ".",
     "paths": {
       "@/*": ["./src/*"]
     }
diff --git a/eslint.config.ts b/eslint.config.ts
index 61efd0d..2209bf9 100644
--- a/eslint.config.ts
+++ b/eslint.config.ts
@@ -3,6 +3,10 @@ import globals from "globals";
 import tseslint from "typescript-eslint";
 import reactHooks from "eslint-plugin-react-hooks";
 import * as tsParser from "@typescript-eslint/parser";
+import { dirname } from "node:path";
+import { fileURLToPath } from "node:url";
+
+const tsconfigRootDir = dirname(fileURLToPath(import.meta.url));
 
 export default [
   {
@@ -14,6 +18,9 @@ export default [
     files: ["**/*.{ts,tsx}"],
     languageOptions: {
       parser: tsParser,
+      parserOptions: {
+        tsconfigRootDir,
+      },
       globals: {
         ...globals.browser,
         ...globals.node,
diff --git a/packages/chat/src/components/input.tsx b/packages/chat/src/components/input.tsx
index 774d575..f447988 100644
--- a/packages/chat/src/components/input.tsx
+++ b/packages/chat/src/components/input.tsx
@@ -74,7 +74,7 @@ export default function InputComponent({
     const reference = addLiveMessage({
       height,
       not_encrypted: true,
-      timestamp: time,
+      send_time: time,
       content: currentValue,
       sent_by_self: true,
       message_state: "awaiting",
@@ -86,13 +86,13 @@ export default function InputComponent({
       height,
       content: encryptedContext,
       receiver_id: userId,
-      timestamp: time,
+      send_time: time,
     }).catch((e) => {
       log(0, "Chat", "red", "Failed to send message", e, {
         content: currentValue,
         encryptedContext,
         receiver_id: userId,
-        timestamp: time,
+        send_time: time,
       });
       reference.setFailed(true);
       toast("error", "Failed to send message");
@@ -108,7 +108,7 @@ export default function InputComponent({
       className={cn(
         "rounded-none border-b-0 pt-0 pb-[env(safe-area-inset-bottom)]",
         isMobile
-          ? "border-0 border-t-1 fixed w-full bottom-0 left-0 px-2"
+          ? "border-0 border-t fixed w-full bottom-0 left-0 px-2"
           : "rounded-t-xl",
       )}
     >
@@ -123,7 +123,7 @@ export default function InputComponent({
             message={{
               height: 0,
               not_encrypted: true,
-              timestamp: 0,
+              send_time: 0,
               content: value,
               sent_by_self: true,
               message_state: "awaiting",
diff --git a/packages/chat/src/components/message.tsx b/packages/chat/src/components/message.tsx
index 6815e13..0e2e81f 100644
--- a/packages/chat/src/components/message.tsx
+++ b/packages/chat/src/components/message.tsx
@@ -157,7 +157,7 @@ export default React.memo(MessageComponent, (prev, next) => {
   return (
     prev.notEncrypted === next.notEncrypted &&
     prev.measureRef === next.measureRef &&
-    prev.message.timestamp === next.message.timestamp &&
+    prev.message.send_time === next.message.send_time &&
     prev.message.content === next.message.content &&
     prev.message.height === next.message.height &&
     prev.message.sent_by_self === next.message.sent_by_self &&
diff --git a/packages/chat/src/context.tsx b/packages/chat/src/context.tsx
index 2002191..738211b 100644
--- a/packages/chat/src/context.tsx
+++ b/packages/chat/src/context.tsx
@@ -22,17 +22,17 @@ export const context = createContext<contextType | undefined>(undefined);
 
 const queryClient = new QueryClient();
 
-function updateMessageStateByTimestamp<
-  T extends { timestamp: number; message_state: RawMessage["message_state"] },
+function updateMessageStateBySendTime<
+  T extends { send_time: number; message_state: RawMessage["message_state"] },
 >(
   messages: T[],
-  timestamp: number,
+  sendTime: number,
   messageState: RawMessage["message_state"],
 ): { next: T[]; updated: boolean } {
   let updated = false;
 
   const next = messages.map((item) => {
-    if (item.timestamp !== timestamp || item.message_state === messageState) {
+    if (item.send_time !== sendTime || item.message_state === messageState) {
       return item;
     }
 
@@ -54,7 +54,7 @@ function updateMessageStateByTimestamp<
  * @param props Parameter props.
  * @returns unknown.
  */
-export function Provider(props: { children: ReactNode }) {
+export default function Provider(props: { children: ReactNode }) {
   const { getSharedSecret } = useCrypto();
   const { get } = useUser();
   const { load } = useStorage();
@@ -141,14 +141,14 @@ export function Provider(props: { children: ReactNode }) {
       }
 
       const rawMessages = messages.data.messages;
-      const sorted = [...rawMessages].sort((a, b) => a.timestamp - b.timestamp);
+      const sorted = [...rawMessages].sort((a, b) => a.send_time - b.send_time);
 
       if (sorted.length > 0) {
-        const fetchedTimestamps = new Set(sorted.map((item) => item.timestamp));
+        const fetchedSendTimes = new Set(sorted.map((item) => item.send_time));
 
         setLiveMessagesState((prev) => {
           const filtered = prev.filter(
-            (liveMessage) => !fetchedTimestamps.has(liveMessage.timestamp),
+            (liveMessage) => !fetchedSendTimes.has(liveMessage.send_time),
           );
 
           return filtered.length === prev.length ? prev : filtered;
@@ -200,19 +200,19 @@ export function Provider(props: { children: ReactNode }) {
 
       const rawData = message.data as {
         chat_partner_id: unknown;
-        timestamp: unknown;
+        send_time: unknown;
         message_state: RawMessage["message_state"];
       };
 
       const nextState = {
         chat_partner_id: Number(rawData.chat_partner_id),
-        timestamp: Number(rawData.timestamp),
+        send_time: Number(rawData.send_time),
         message_state: rawData.message_state,
       };
 
       if (
         !Number.isFinite(nextState.chat_partner_id) ||
-        !Number.isFinite(nextState.timestamp)
+        !Number.isFinite(nextState.send_time)
       ) {
         log(
           3,
@@ -238,9 +238,9 @@ export function Provider(props: { children: ReactNode }) {
       }
 
       setLiveMessagesState((prev) => {
-        const { next, updated } = updateMessageStateByTimestamp(
+        const { next, updated } = updateMessageStateBySendTime(
           prev,
-          nextState.timestamp,
+          nextState.send_time,
           nextState.message_state,
         );
         return updated ? next : prev;
@@ -257,9 +257,9 @@ export function Provider(props: { children: ReactNode }) {
           let updated = false;
 
           const pages = current.pages.map((page) => {
-            const nextPage = updateMessageStateByTimestamp(
+            const nextPage = updateMessageStateBySendTime(
               page,
-              nextState.timestamp,
+              nextState.send_time,
               nextState.message_state,
             );
 
diff --git a/packages/chat/src/screen.tsx b/packages/chat/src/screen.tsx
index 395e518..60e3f00 100644
--- a/packages/chat/src/screen.tsx
+++ b/packages/chat/src/screen.tsx
@@ -80,11 +80,11 @@ export default function Screen() {
       return liveMessagesSnapshot;
     }
 
-    const historicalTimestamps = new Set(
-      historicalMessages.map((message) => message.timestamp),
+    const historicalSendTimes = new Set(
+      historicalMessages.map((message) => message.send_time),
     );
     const liveWithoutDuplicates = liveMessagesSnapshot.filter(
-      (message) => !historicalTimestamps.has(message.timestamp),
+      (message) => !historicalSendTimes.has(message.send_time),
     );
 
     return [...historicalMessages, ...liveWithoutDuplicates];
@@ -97,7 +97,7 @@ export default function Screen() {
   }, [messages]);
 
   const getItemKey = React.useCallback((index: number) => {
-    return messagesRef.current[index]?.timestamp ?? index;
+    return messagesRef.current[index]?.send_time ?? index;
   }, []);
 
   // eslint-disable-next-line react-hooks/incompatible-library
@@ -167,7 +167,11 @@ export default function Screen() {
     }
 
     setLastLiveMessageCount(count);
-  }, [lastLiveMessageCount, liveMessagesSnapshot.length, stickyBottomThreshold]);
+  }, [
+    lastLiveMessageCount,
+    liveMessagesSnapshot.length,
+    stickyBottomThreshold,
+  ]);
 
   React.useLayoutEffect(() => {
     if (
@@ -291,7 +295,7 @@ export default function Screen() {
 
             return (
               <div
-                key={message.timestamp}
+                key={message.send_time}
                 data-index={virtualRow.index}
                 ref={virtualizer.measureElement}
                 style={{
diff --git a/packages/shared/src/data.ts b/packages/shared/src/data.ts
index e32dca8..ba830d8 100644
--- a/packages/shared/src/data.ts
+++ b/packages/shared/src/data.ts
@@ -13,7 +13,7 @@ const message = z.object({
   height: z.number(),
   not_encrypted: z.boolean().optional(),
   sent_by_self: z.boolean(),
-  timestamp: z.number(),
+  send_time: z.number(),
   content: z.base64(),
   files: z.array(fileFromMessage).optional(),
   tint: z.string().length(7).startsWith("#").optional(),
@@ -111,7 +111,7 @@ export const ttp = {
     request: z.object({}),
     response: z.object({
       sender_id: z.number(),
-      timestamp: z.number(),
+      send_time: z.number(),
       message,
     }),
   },
@@ -130,7 +130,7 @@ export const ttp = {
       height: z.number(),
       content: z.base64(),
       receiver_id: z.number(),
-      timestamp: z.number(),
+      send_time: z.number(),
       files: z.array(fileFromMessage).optional(),
     }),
     response: z.object({}),
@@ -145,13 +145,13 @@ export const ttp = {
   message_state: {
     request: z.object({
       chat_partner_id: z.number(),
-      timestamp: z.number(),
+      send_time: z.number(),
       message_state: message.shape.message_state,
     }),
     response: z.object({
       chat_partner_id: z.number(),
       message_state: message.shape.message_state,
-      timestamp: z.number(),
+      send_time: z.number(),
     }),
   },
 
diff --git a/packages/ttp/src/context.tsx b/packages/ttp/src/context.tsx
index 13a13ef..85421ca 100644
--- a/packages/ttp/src/context.tsx
+++ b/packages/ttp/src/context.tsx
@@ -155,7 +155,7 @@ const TTPContext = createContext<ContextType | undefined>(undefined);
  * @param props Component props with children.
  * @returns Loading, error, or provider-wrapped JSX.
  */
-export default function Provider(props: {
+export function Provider(props: {
   children: ReactNode;
   blockConnection?: boolean;
 }) {
diff --git a/tsconfig.json b/tsconfig.json
deleted file mode 100644
index b2e1f1a..0000000
--- a/tsconfig.json
+++ /dev/null
@@ -1,9 +0,0 @@
-{
-  "compilerOptions": {
-    "module": "esnext",
-    "baseUrl": ".",
-    "paths": {
-      "@app/*": ["packages/*/src", "apps/*/src"]
-    }
-  }
-}